This test has never worked on AArch64 since the day it was committed. It has
a number of issues that prevent it from working on AArch64:
The testfailures seem to be known and triaged, so until that's fixed there's
no point in running this test.
gcc/testsuite/ChangeLog:
PR fortran/107071
* gfortran.dg/ieee/modes_1.f90: skip aarch64, arm.
! { dg-do run }
-!
+! { dg-skip-if "PR libfortran/78314" { aarch64*-*-gnu* arm*-*-gnueabi arm*-*-gnueabihf } }
! Test IEEE_MODES_TYPE, IEEE_GET_MODES and IEEE_SET_MODES